ovn-octavia-provider/ovn_octavia_provider/agent.py

46 lines
1.6 KiB
Python

# Copyright 2020 Red Hat, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log as logging
from ovn_octavia_provider.common import config as ovn_conf
from ovn_octavia_provider import event as ovn_event
from ovn_octavia_provider import helper as ovn_helper
from ovn_octavia_provider.ovsdb import impl_idl_ovn
ovn_conf.register_opts()
LOG = logging.getLogger(__name__)
OVN_EVENT_LOCK_NAME = "neutron_ovn_octavia_event_lock"
def OvnProviderAgent(exit_event):
helper = ovn_helper.OvnProviderHelper()
events = [ovn_event.LogicalRouterPortEvent(helper),
ovn_event.LogicalSwitchPortUpdateEvent(helper)]
# NOTE(mjozefcz): This API is only for handling OVSDB events!
ovn_nb_idl_for_events = impl_idl_ovn.OvnNbIdlForLb(
event_lock_name=OVN_EVENT_LOCK_NAME)
ovn_nb_idl_for_events.notify_handler.watch_events(events)
ovn_nb_idl_for_events.start()
LOG.info('OVN provider agent has started.')
exit_event.wait()
LOG.info('OVN provider agent is exiting.')
ovn_nb_idl_for_events.notify_handler.unwatch_events(events)
ovn_nb_idl_for_events.stop()